WO1998043459A3 - Verfahren zum kanalschätzen aus über einen funkkanal übertragenen empfangssignalen - Google Patents

Verfahren zum kanalschätzen aus über einen funkkanal übertragenen empfangssignalen Download PDF

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Publication number
WO1998043459A3
WO1998043459A3 PCT/DE1998/000877 DE9800877W WO9843459A3 WO 1998043459 A3 WO1998043459 A3 WO 1998043459A3 DE 9800877 W DE9800877 W DE 9800877W WO 9843459 A3 WO9843459 A3 WO 9843459A3
Authority
WO
WIPO (PCT)
Prior art keywords
receive signals
channel
transmitted via
incidence
signals transmitted
Prior art date
Application number
PCT/DE1998/000877
Other languages
English (en)
French (fr)
Other versions
WO1998043459A2 (de
Inventor
Paul Walter Baier
Josef Blanz
Martin Haardt
Apostolos Papathanassiou
Original Assignee
Siemens Ag
Paul Walter Baier
Josef Blanz
Martin Haardt
Apostolos Papathanassiou
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Ag, Paul Walter Baier, Josef Blanz, Martin Haardt, Apostolos Papathanassiou filed Critical Siemens Ag
Priority to JP54469798A priority Critical patent/JP3935969B2/ja
Priority to DE59808380T priority patent/DE59808380D1/de
Priority to EP98928071A priority patent/EP1013003B1/de
Publication of WO1998043459A2 publication Critical patent/WO1998043459A2/de
Publication of WO1998043459A3 publication Critical patent/WO1998043459A3/de
Priority to US09/407,257 priority patent/US6519477B1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/086—Weighted combining using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0845—Weighted combining per branch equalization, e.g. by an FIR-filter or RAKE receiver per antenna branch
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0848—Joint weighting
    • H04B7/0851—Joint weighting using training sequences or error signal

Abstract

Beim erfindungsgemäßen Verfahren zum Kanalschätzen aus über einen Funkkanal übertragenen Empfangssignalen ist einer Empfangseinrichtung eine Anzahl Ka Empfangssensoren zugeordnet, über die Ka den Empfangssensoren zugeordnete Empfangssignale empfangen werden. Die Empfangssignale setzen sich aus mindestens einem durch eine senderindividuelle Feinstruktur geprägten Teilnehmersignal zusammen, wobei ein k-tes Teilnehmersignal, k=1..K, durch Kd sich in ihrer Einfallsrichtung am Empfangsort unterscheidenden Teilwellen übertragen wird. In einem ersten Verfahrensschritt wird zumindest eine Einfallsrichtung einer Teilwelle eines Teilnehmersignals ausgewertet, so daß in einem zweiten Verfahrensschritt aus den Ka Empfangssignalen und der Einfallsrichtung richtungsselektive Kanalimpulsantworten ermittelt werden.
PCT/DE1998/000877 1997-03-25 1998-03-25 Verfahren zum kanalschätzen aus über einen funkkanal übertragenen empfangssignalen WO1998043459A2 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP54469798A JP3935969B2 (ja) 1997-03-25 1998-03-25 無線チャネルを介して伝送される受信信号からチャネルを見積もるための方法
DE59808380T DE59808380D1 (de) 1997-03-25 1998-03-25 Verfahren zum kanalschätzen aus über einen funkkanal übertragenen empfangssignalen
EP98928071A EP1013003B1 (de) 1997-03-25 1998-03-25 Verfahren zum kanalschätzen aus über einen funkkanal übertragenen empfangssignalen
US09/407,257 US6519477B1 (en) 1997-03-25 1999-09-27 Method for channel estimation from received signals transmitted via a radio channel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19712501 1997-03-25
DE19712501.8 1997-03-25

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US09/407,257 Continuation US6519477B1 (en) 1997-03-25 1999-09-27 Method for channel estimation from received signals transmitted via a radio channel

Publications (2)

Publication Number Publication Date
WO1998043459A2 WO1998043459A2 (de) 1998-10-01
WO1998043459A3 true WO1998043459A3 (de) 1999-01-21

Family

ID=7824564

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1998/000877 WO1998043459A2 (de) 1997-03-25 1998-03-25 Verfahren zum kanalschätzen aus über einen funkkanal übertragenen empfangssignalen

Country Status (7)

Country Link
US (1) US6519477B1 (de)
EP (1) EP1013003B1 (de)
JP (1) JP3935969B2 (de)
CN (1) CN1113485C (de)
DE (1) DE59808380D1 (de)
ES (1) ES2200348T3 (de)
WO (1) WO1998043459A2 (de)

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DE19825536B4 (de) * 1998-06-08 2005-05-19 IQ wireless GmbH, Entwicklungsgesellschaft für Systeme und Technologien der Telekommunikation Verfahren und Vorrichtung für ein vollduplexfähiges Funkübertragungssystem mit CDMA-Zugriff
FI982857A (fi) * 1998-12-31 2000-07-01 Nokia Networks Oy Vastaanottomenetelmä ja vastaanotin
US6816541B1 (en) * 1999-05-24 2004-11-09 Texas Instruments Incorporated Spread spectrum interference cancellation
CN1108071C (zh) 2000-04-11 2003-05-07 信息产业部电信科学技术研究院 码分多址移动通信系统中终端设备端的一种信号处理方法
US6775261B1 (en) * 2000-06-05 2004-08-10 Lsi Logic Corporation Frequency division multiple access system searching
US7720472B1 (en) * 2000-09-14 2010-05-18 The Directv Group, Inc. Stratospheric-based communication system having interference cancellation
US6907270B1 (en) 2000-10-23 2005-06-14 Qualcomm Inc. Method and apparatus for reduced rank channel estimation in a communications system
US7809403B2 (en) 2001-01-19 2010-10-05 The Directv Group, Inc. Stratospheric platforms communication system using adaptive antennas
US8396513B2 (en) * 2001-01-19 2013-03-12 The Directv Group, Inc. Communication system for mobile users using adaptive antenna
US7187949B2 (en) * 2001-01-19 2007-03-06 The Directv Group, Inc. Multiple basestation communication system having adaptive antennas
KR100679435B1 (ko) * 2003-03-04 2007-02-06 닛본 덴끼 가부시끼가이샤 초기단계부터 지향성 빔의 우수한 수신품질을 갖는 적응형안테나 수신 장치
US7313168B2 (en) * 2003-03-06 2007-12-25 Nokia Corporation Method and apparatus for receiving a CDMA signal
US7333575B2 (en) * 2003-03-06 2008-02-19 Nokia Corporation Method and apparatus for receiving a CDMA signal
CN100431386C (zh) 2005-05-12 2008-11-05 上海原动力通信科技有限公司 同频多小区终端来波方向的估计方法
US8229365B2 (en) * 2007-02-22 2012-07-24 Telefonaktiebolaget L M Ericsson (Publ) Method and a device for reduced interference in a cellular access system
US10177947B2 (en) 2015-07-24 2019-01-08 Brian G. Agee Interference-excising diversity receiver adaptation using frame synchronous signal features and attributes
US11381281B2 (en) * 2020-02-04 2022-07-05 Powermat Technologies Ltd. Fast data transmission for wireless power transfer systems

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DE4201439A1 (de) * 1992-01-21 1993-07-22 Daimler Benz Ag Verfahren und anordnung zur uebertragung hoher datenraten fuer den digitalen rundfunk
US5299148A (en) * 1988-10-28 1994-03-29 The Regents Of The University Of California Self-coherence restoring signal extraction and estimation of signal direction of arrival

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US5255210A (en) * 1988-10-28 1993-10-19 The Regents Of The University Of California Self-coherence restoring signal extraction apparatus and method
TW351886B (en) * 1993-09-27 1999-02-01 Ericsson Telefon Ab L M Using two classes of channels with different capacity
JP3022194B2 (ja) * 1994-09-02 2000-03-15 三菱電機株式会社 ダイバーシチ受信装置
DE19511752A1 (de) 1995-03-30 1996-10-10 Siemens Ag Verfahren zum hochauflösenden Auswerten von Signalen zur ein- oder zweidimensionalen Richtungs- oder Frequenzschätzung
DE19535441A1 (de) * 1995-09-23 1997-03-27 Bosch Gmbh Robert Antenne einer Zentralstation eines Punkt-zu-Mehrpunkt-Richtfunksystems
US5887262A (en) * 1996-04-19 1999-03-23 Nokia Mobile Phones Limited Smart antenna backwards compatibility in digital cellular systems
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FI105063B (fi) * 1997-05-16 2000-05-31 Nokia Networks Oy Menetelmä lähetyssuunnan määrittämiseksi ja radiojärjestelmä
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Patent Citations (2)

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US5299148A (en) * 1988-10-28 1994-03-29 The Regents Of The University Of California Self-coherence restoring signal extraction and estimation of signal direction of arrival
DE4201439A1 (de) * 1992-01-21 1993-07-22 Daimler Benz Ag Verfahren und anordnung zur uebertragung hoher datenraten fuer den digitalen rundfunk

Non-Patent Citations (1)

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Also Published As

Publication number Publication date
DE59808380D1 (de) 2003-06-18
JP2001518261A (ja) 2001-10-09
WO1998043459A2 (de) 1998-10-01
CN1113485C (zh) 2003-07-02
JP3935969B2 (ja) 2007-06-27
ES2200348T3 (es) 2004-03-01
EP1013003B1 (de) 2003-05-14
CN1251704A (zh) 2000-04-26
US6519477B1 (en) 2003-02-11
EP1013003A2 (de) 2000-06-28

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